Service difficulty report · Vapor Barrier · Boeing 737823

Difficulty date
February 10, 2025
Submitted
February 10, 2025
Operation
Air carrier
Aircraft
N920NN
Make and model
Boeing 737823
Aircraft serial
31165
Aircraft time
35,431 hours, 15,319 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND WHELL WELL, FORWARD BULKHEAD AT BS 663, LOWER VAPOR BARRIER HAS A CRACK THAT IS APPROXIMATELY 9 INCHES IN LENGTH OUTBOARD OF PACK EXHAUST DUCT. INSTALLED NEW FABRIC REPAIR PATCH ON THE FORWARD SIDE OF THE VAPOR BARRIER. PER SRM 57-10-10-2R-2 AND AARD 57-10-10-9.